Paper I · 7 Sustainable Development & Environment · 7.1.2 Biogeochemical cycles

7.1.2.2 Carbon cycle and carbon sinks

Carbon moves between air, living things, oceans, soils and rocks; plants and oceans take it up, while respiration, decay and the burning of fossil fuels return it, and human emissions have upset the balance.

  • APPSC Paper I · Paper I
  • Standard level
  • 7 min read
  • Full course

Key terms

  • carbon cycle
  • photosynthesis
  • respiration
  • fossil fuels
  • Keeling curve
  • Mauna Loa
  • ocean acidification
  • carbon sink
  • blue carbon
  • carbon sequestration
  • permafrost

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Mains writingMains writing
  5. Common trapsFoundation
  6. Quick revisionFoundation

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